Friday

February 27, 2015

February 27, 2015

Total # Posts: 934

**Social Studies**

Which physical feature covers most of Saudi Arabia? the Empty Quarter the Fertile Crescent the Zagros Mountains the Persian Gulf
*February 25, 2015*

**Math**

7/15 - 2/5=
*February 10, 2015*

**maths**

A circular cloth had 3 rows of lace each 10 centimetres apart around its edge. The radius of the tablecloth was 60 centimetres. how many metres of lace would be needed to decorate the table cloth?
*February 4, 2015*

**Math**

Show me how?
*February 3, 2015*

**Math**

7/15 - 2/5=
*February 3, 2015*

**7th grade math **

i am having a hard time understanding the venn diagram can someone explain it to me
*January 30, 2015*

**physics**

Assuming that the human body has a 1.2-cm-thick layer of skin tissue and a surface area of 1.5m2 , estimate the rate at which heat is conducted from inside the body to the surface if the skin temperature is 34 ∘C. (Assume a normal body temperature of 37 ∘C for the ...
*January 28, 2015*

**physics**

The U.S. five-cent coin, the nickel, has a mass of 5.1 g, a volume of 0.719 cm3, and a total surface area of 8.54 cm2. Assuming that a nickel is an ideal radiator, how much radiant energy per second comes from the nickel, if it is at 24∘C?
*January 28, 2015*

**physics**

Assume a goose has a 2.2-cm-thick layer of feather down (on average) and a body surface area of 0.16m2 .What is the rate of heat loss (conduction only) if the goose, with a body temperature of 41 ∘C, is outside on a winter day when the air temperature is 12∘C?
*January 28, 2015*

**physics**

If 0.060kg of ice at 0 ∘C is added to 0.320kg of water at 25∘C in a 0.150-kg aluminum calorimeter cup, what is the final temperature of the water?
*January 28, 2015*

**Physics**

1 A hot-air balloon is rising upwards at a constant velocity of 5m.s When the balloon is 100m above the ground, a sandbag is dropped from it. 1.1 what is the velocity of the sandbag when its displacement is zero. 1.2 Determine the maximum height X, above the ground reached by ...
*January 14, 2015*

**Physics please help**

TIgers pitcher justin throws a basketball staright upward 29.0m/s. Calculate A) the height to which the ball will rise b) the time it takes to reach the highest point c) the speed with which it will return to the same height which it was thrown d) the speed of the ball 2.50s ...
*December 20, 2014*

**physics please help**

black bart and wyatt earp have a race. wyatt moseys 400m in 58.0s and bart moseys the same distance in 60.0s. by what Distance does wyatt beat bart in this race? Please show all work would greatly appreciate have a test coming up and i don't understand at all how to do it
*December 19, 2014*

**please check my english**

1.C intuitive and calculating in his appraisal of others. 2. D His yearning for peace at home and in society. 3. C Falsely accuses Hannetjie of supplying him with tobacco. 4. B From inhuman to respectable
*December 4, 2014*

**Math fraction**

Wow!!! I'm in the 4th grade.. Can u make it easier?
*December 3, 2014*

**Math fraction**

2/7=_/21
*December 3, 2014*

**Science**

If a cheetah is able to accelerate at 15.0 m/s2 from a stand still, what speed will it reach after 2.50 seconds?
*December 3, 2014*

**Physics**

A box of mass 10.9 kg with an initial velocity of 2.01 m/s slides down a plane, inclined at 38◦ with respect to the horizontal. The coefficient of kinetic friction is 1. The box stops after sliding a distance x. The acceleration due to gravity is 9.8 m/s. a. How far does...
*December 2, 2014*

**Physics**

A 284 kg crate is pulled along a level surface by an engine. The coefficient of kinetic friction between the crate and the surface is 0.513. How much power must the engine deliver to move the crate at a constant speed of 7.2 m/s?
*December 2, 2014*

**Math**

Which expression for 32 more than a number d? 32x d, 32-d, 32+d, 32\d ?
*November 17, 2014*

**Social Studies**

what was the answer
*October 30, 2014*

**English**

Young readers often enjoy the Nancy Drew mystery books. Is enjoy past present or future
*October 1, 2014*

**4th grade math**

The answer will be 8. 32 divided by 4 is 8. 8 X 4 = 32
*September 30, 2014*

**chemistry**

doesnt work the same way as ALCL3.6H2O
*September 27, 2014*

**Math**

GCF of 12
*September 17, 2014*

**PHYSICS. **

5. A motor lifts a 12 kg mass to a height of 15 m at a constant velocity in 3.5 s. a) Find the power b) If the motor is only 35% efficient find the input energy.
*June 17, 2014*

**Physics**

a motor lifts a 12 kg mass to a height of 15 meters at a content velocity in 3.5 seconds. a) find the power b) if the motor is only 35% efficient find the input energy
*June 16, 2014*

**math**

Please Don't spam, don't submit to many question at the same time in different post! We try are best to answer. Thank You! Unknown
*June 3, 2014*

**Introduction to oPsychology**

When you drive down the street listening to your car's radio, you may not think about the fact that the music is received by the radio's antenna. Which part of the human neuron serves the same purpose as asn antenna-that is, receiving information?
*May 26, 2014*

**english and languge arts**

HURRY I NEED HELP!!!!! where should you insert a colon in this sentence? Interview the following people Dave, barb, Jose, and Mary Ann 1.after following 2. after people 3.after Jose 4. no where i said no where but i dont know
*May 20, 2014*

**H.E.L.P**

Josslyn is right.
*May 10, 2014*

**Science help ASAP**

All are right.
*May 5, 2014*

**Algebra**

6/3=2 2 hrs
*April 16, 2014*

**Math**

The surface area of a prism is 54 square inches. What is the surface area of a similar prism that is smaller by a scale of 1/3? My answer- 6
*April 6, 2014*

**Math**

Can you check my answer, I got 5.92983333
*April 5, 2014*

**Math**

Convert- 94 gal/h=______L/min
*April 5, 2014*

**Math**

Ms.Sue wouldn't it be 192?
*April 5, 2014*

**Math**

Can someone help me with this? Convert: 48lb/gal=____oz/qt
*April 5, 2014*

**Math economics HELP!!!**

YES
*March 20, 2014*

**Science**

Tris is right 100%
*March 20, 2014*

**Science**

How many moles of O2 are needed to make 1.98 moles of SO3?
*March 13, 2014*

**science**

how many moles of SO2 are needed to make 3 moles of SO3?
*March 13, 2014*

**CALCULUS ECONOMICS**

WRONG s is not -300
*March 13, 2014*

**Probability**

1. 0.0384 (5!/5^5) 2. ???
*March 7, 2014*

**Probability**

c) 13/24
*March 7, 2014*

**Probability**

a) 3/5 b) (2/5)/(3/5)=2/3
*March 7, 2014*

**Probability**

pataka rana ug answer.. 1/5 + 2/5=4/5? sure ka ana?
*March 7, 2014*

**Math**

oops the percent it 18.4 not 18.45! Sorry
*March 1, 2014*

**Math**

Oh! Ok let me try it by dividing only once.
*March 1, 2014*

**Math**

It's a percent proportion- is/of = %/100
*March 1, 2014*

**Math**

Also~ 18.45 of 880 is what number? My answer- 1.6192
*March 1, 2014*

**math**

I got .9052 the 2nd time
*March 1, 2014*

**math**

62% of 146 is what number? My answer- 23548.38
*March 1, 2014*

**Science**

Thank you this helps a lot!
*February 25, 2014*

**Science**

How are volcanoes formed?
*February 25, 2014*

**science**

Please help! Thank you!
*February 22, 2014*

**science **

What is a mountains origin?
*February 22, 2014*

**social stud. quiz --- check my answers!!!**

Number nine is A.
*February 11, 2014*

**Math Help**

Please help me solve these two problems and check my answer :) 1. 3x-5+x+2 My answer- X= 17/3 2. 5/6x+1/4= -9/4 my answer- X= -2
*February 9, 2014*

**science**

a stone is dropped down a well.it hits th surface of the water after 2seconds.find the depth of water from point where the stone was dropped
*February 5, 2014*

**Civics**

Ok thank you very much!:D
*January 30, 2014*

**Civics**

So it establishes that the court cannot/will not change the understanding of the law once made unless the decision before an be shown wrong/ in error?
*January 30, 2014*

**Civics**

What role do precedents play in our legal system? Help would be appreciated!! :-)
*January 30, 2014*

**POL 201**

I need answers for week 2 quiz.
*January 25, 2014*

**Physics**

One student generates a short, loud sound of wavelength 0.7576 m. Another student, who is 100 m away, hears the sound exactly 0.300 s later. What is the frequency of this sound? Please help
*January 15, 2014*

**Physics please help. **

A ball of Styrofoam (ρ = 100 kg/m3) is totally submerged in water. The ball has a mass of 300.0 g (it could be a pretty big block). What is the volume of the ball? If a string holds the ball when it’s in the water, what’s the tension in the string?
*January 15, 2014*

**Social**

What are the for and against arguments for the right to vote?
*January 12, 2014*

**Physics Please check my answer**

Well it's a two part system, so the mass is a force that the other mass has to overcome in order to move
*January 11, 2014*

**Physics Please check my answer**

Okay, so I've figured this much out on my own, I just need help with the next part. It's a two block system with a friction of .20 a hanging mass of 7.5 kg and mass on the table at 10 kg. I got 3.08 m/s^2 for the acceleration and I got 22.8 N for the tension in the ...
*January 11, 2014*

**science **

Is a bluegill both a decomposer and consumer?
*January 11, 2014*

**Physics Please check my answer**

Yes, the rope pulls all of the blocks to the right. Thank you so much for your help.
*January 11, 2014*

**Physics Please check my answer**

1. Which of the following are conserved in a totally inelastic collision? Only momentum Only kinetic energy Both momentum and kinetic energy Neither momentum nor kinetic energy <--- It depends on the objects. 2. Two skaters stand face to face. Skater 1 has a mass of 55 kg, ...
*January 11, 2014*

**please check this**

I got 225 N/m is this correct?
*January 10, 2014*

**physics**

8. A spring is compressed a distance of 0.15 m from its rest position and held in place while a ball of mass 0.150 kg is placed at its end. When the spring is released, the ball leaves the spring traveling at 9.0 m/s. What is the spring constant? 540 N/m 450 N/m 60 N/m 225 N/m...
*January 10, 2014*

**Physics help**

I'm trying to calculate the tension in a rope. The two ropes are holding up a picture frame that is 100N, each rope is at a 45 degree angle. I'm trying to find the value of the tension of the 1st rope. Please help
*January 10, 2014*

**help!!!!**

8y-6
*January 10, 2014*

**science help!**

A satellite is placed in orbit 100 km above the surface of the earth (radius = 6370 km, mass = 5.98 x 1024 kg). If the satellite has a mass of 1500 kg, what is the force of gravity acting on it?
*January 10, 2014*

**science please check my answer**

A mass is moving in uniform circular motion under the effects of a centripetal force. If the force is doubled and the radius is cut in half, by what factor will the speed change? It will double. <---- It will be cut in half. It will not change. It will quadruple. It will be...
*January 10, 2014*

**maths**

Solve 5x + 3y = 4 3x + 4y = 9 Just a bit confused Please help
*January 10, 2014*

**Science help.**

did you answer all correctly?
*January 4, 2014*

**physics**

A graduated cylinder is inverted in a very large bucket of water. The depth of the water in the container is 6 m and the top of the bucket is open to the air in the room. The mouth (bottom) of the graduated cylinder is 4 m above the bottom of the container. Due to a pressure ...
*December 30, 2013*

**Math!**

Really babe?
*December 16, 2013*

**Engineering**

plz... post all the answers you know so that other people will be benefited.....
*December 15, 2013*

**Physics Classical Mechanics**

vm = 2.213594362 Q = 0.278168471
*December 11, 2013*

**Physics Classical Mechanics**

M/(pi*r^2*(l-h) + 4*pi*R^3/3)
*December 11, 2013*

**Physics Classical Mechanics**

f = 1/(2*pi)*sqrt((2*g)/L)
*December 11, 2013*

**Physics Classical Mechanics**

T = 2*pi*sqrt((3*M)/(2*k))
*December 11, 2013*

**Physics Classical Mechanics**

(a)NL = (m*g*(1-(2*x)/d))/2 NR = (m*g*(1+(2*x)/d))/2 (b)(-2*mu_k*g*x)/d (c)x_0*cos(sqrt((2*mu_k*g)/d)*t)
*December 11, 2013*

**Science**

Thank you!
*December 10, 2013*

**Science**

What is a example of a scientific law?
*December 10, 2013*

**math please help me**

6x + 4(2x + 3) = 34 + 3x 6x + 4(2x) + (4)(3) = 34 + 3x 6x + 8x + 12 = 34 + 3x 14x + 12 = 34 + 3x 12 = 39 + -11x -27/-11 = =11x/-11 2.45 = x
*November 25, 2013*

**Math**

The variable W represents the width of a rectangle. The length of the rectangle, L, is 5 less than twice the width. Write an expression for the length of the rectangle in terms of W. Write a simplified expression for the perimeter of the rectangle in terms of W. Find the ...
*November 16, 2013*

**Science **

What substances (Syrup or water) absorb more thermal energy? Why?
*November 16, 2013*

**science**

Calculate the time in seconds an Olympic Skier would take to finish a 5,000 meter race at an average velocity of 25 m/s downhill.
*November 15, 2013*

**Physics Classical Mechanics**

(a) sqrt(G*M/r_a)
*November 14, 2013*

**Music **

What could be done to minimize the commercialism in today’s music scene?
*November 14, 2013*

**Science **

what are 4 places where convection is important in a home? {I already have the air conditioner}
*November 13, 2013*

**Science**

connexus right ik the answer is c your right goodluck
*November 10, 2013*

**Civics**

Ok thank you!
*November 10, 2013*

**Civics **

Why was the 14th amendment passed/needed? My answer- To guarantee all former slaves and their children were legally citizens of the USA under the Constitution.
*November 10, 2013*

Pages: **1** | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Next>>